Ensure String Interpolation / Bind Markers are used in correct places only

[tabdulradi]

String Interpolation variables get replaced by the macro with Bind markers.
Due to multiple reasons, Schema engine could detect a wrong number of Bind Markers.

Possible Reasons:
1- Bug in Schema Engine
2- User wrote bind markers himself in the query
3- User used String interpolation in wrong places

First expose the issue via testcases, then fix.